Mounting means for flexible strap clips



Jan. 20, 1948.. A. ROBERTSON ET AL 2,434,720

MOUNTING MEANS FOR FLEXIBLE STRAP CLIPS Filed vJune 26, 1944 Patented Jan. 20, 1,948

MOUNTING MEAN S FOR FLEXIBLE STRAP CLIPS Archibald Robertson, North Hollywood, and Dale W. Merritt, Torrance, Calif., assignors to Adel Precision Products Corp., Burbank, Calif., a corporation of California 'Application June 2c, 1944, serial No. 542,202

(ci. 24e- 74) 6 Claims. 1

This invention relates to a mounting means for eXible strap clips for supporting wires or conduits of the character shown in our copending application for patent executed on even date herewith bearing Serial No. 539,913, filed June l2, 1944, now Patent No. 2,426,708, granted September 2, 1947, and more particularly pertains to a mounting means for securing strap clips to a support as in aircraft, surface craft and the like where the wires or conduits are secured to the structural part or adjacent which the wires or conduits are extended.

An object of this invention is to provide a mounting means for ilexible strap type clips such as described which will greatly facilitate the installation of such clips in sub-assembly formations wherein the clips are first clamped around the wires or conduits and then secured to the structural parts past or adjacent which the wires or conduits are to be extended, in that the mounting means may be mounted on the clips before or after the clips are clamped on the wires of conduits, or may be first mounted on the support after which the clips may be detachably connected thereto and securely held thereby in all cases without the use of bolts, nuts or the like.

A further object of our invention is to provide a mounting means such as described which may first be mounted on the support apart from the clip whereby the clip Whether clamped around the wires or conduits or before being so clamped may be quickly and easily attached to the mounting means to remain securely held thereby.

Another object of our invention is to provide a mounting means in the form of a friction clamp which is adapted to have the clip detachably mounted thereon and to be detachably mounted on the support yet will effectively hold the clip thereon and likewise be held on the support so as to prevent accidental dislodgement from the support as well as accidental separation of the clip therefrom.

Another object is to provide a mounting clasp such as described which is made of a single piece of spring metal and constructed so that the rivet or fastening employed in the clip to secure the strap to the buckle or clamp the clip, projects outwardly and is formed to serve as a means for detachably connecting the clasp to the clip.

With the foregoing object in view, together with such other objects and advantages as may subsequently appear, the invention resides in the parts and in the combination, construction and arrangement of parts hereinafter described and claimed, and illustrated by way of example in the accompanying drawing, in which:

Fig. 1 is a front elevation of a mounting clasp embodying this invention as it would appear when connected with the clip part of which is also shown in front elevation;

Fig. 2 is a sectional view of the clasp and clip on the line 2 2 of Fig. 1;

Fig. 3 is a rear elevation of the clamp as when attached to the clip;

Fig. 4 is a perspective view of the clasp removed from the clip;

Fig. 5 is a perspective of the clamp or buckle cn the clip showing the rivet head formation providing for attachment of the clasp to the clip;

Fig. 6 is a part sectional part side elevational View of a clip and the clasp hereof as when installed on a support to support a bundle of wires.

Referring to the drawings more specically A generally designates a mounting means embodying the present invention, adapted to be fitted over and frictionally clamped on an edge of a support B as shown in Fig. 6 to support thereon a flexible strap type of clip C for wires D, or a conduit not shown, the mounting means being detachable from the support, and the clip being detachable from the mounting means to facilitate installation of the mounting means and clip as will be hereinafter more fully described.

As here provided the mounting means A is in the form of a. clasp made from a single piece of spring metal bent into substantially an inverted U-shape with its opposed portions or legs 'l and 8 arranged to be forced apart on the application of the clasp to the support whereby said legs will eiectively irictionally grip the support to hold the clasp in place thereon as shown in Fig. 6.

The high portion or bend 9 of the clasp is curved so as to be nearly circular in cross section to afford the desired spring action yet prevent weakening of the metal with repeated ilexing of the legs.

The leg 1 of the clasp is substantially straight from its free end to a point near the bight portion 9 and stands vertically, that is, parallel to the support D when mounted thereon, except for a curved offset portion lll connecting it with the bight portion 9 so as to offset the latter. The leg 3 is extended divergently from and is shorter than the leg 1 and is somewhat curved from the bight portion 9 to its outer end whereby the clasp is given a wide mouth affording a ready application thereof to the support.y

Lateral cuts or slits in the sides of the leg 8 provide spurs or jaws I I adapted to bite into and grip the support to securely hold the clasp thereon. The offset bight portion 9 causes the clasp to be so distorted and tensioned when the clasp is forced into final holding position in which the edge of the support isyreceivedvin saidlbight per;-i tion, that the legs, 'Iranda will tightly grip-the; support and securely hold the clasp thereon as seen in Fig. 6. The spurs or jaws II do not ap-v preciably resist the movement of the clasp onto the support but do effectively resist:withdrawalv of the clasp.

To provide for detachablyconnectingtheclip` C with the clasp A or vice Versa,;the.legl1, of the".

clasp is cut and stamped to form Aa tongile-like-A1 5M jaw I2 between outwardly offset vertical side portions I3. The metal of the legl'I is cutoutk and so stamped for forming the jaw I2 and offL set side portions I3 that there is formed-jaT-slot I4 in the leg which slotf` affords the connection The clip vC is!` formed. of. a, flexiblezlstrap- I5y adaptedpto. bei looped around the wires D asishown inlFig. 6; and isfprovidedwith abuckle, IbyA meansof which lthe'istrapfis clamped tightly asta, loop around the wires, Thisbuckle per se forms no part of thepresent invention .and as it is fully described in our copending@ application hereinbefore identiiedno-furtherdescription is here given except to point out thatit:is,fastened to therstrapby means ,of a rivetporlikle fasteningl'l having ahead I8 adapted tdinterlocky with the. clasp1 A by beingitted in :the Teslot, Irl in :the .leg I ofsaid ,clasps asV shown in; FigsV 2 .6j the head I 8 ,then `lying between ythe .,jaw., I2; andsidev portions ISR Thexaw I2 will be forced inwardly-tbv theheadviintoffrictional contact with the. suiof`r port: and` thelhead will beheldunder the tension of thejaw AI'fLand Yportions I3 sofas to` effectively resist accidental dislodgment from. the clasp.

twill now befapparentpthnt thepclasp` Aheref. of maybe tted ontothe heacllon theclipy C or. viceversa ,before or: after thel ,clip is clasped,- around .thelwiresafterwhich the clasp is mounted Vonlthe supporter the clasp .mayfbe first fitted` toc the` support yand the clipthen connected, theref to de,pending.` on. .the installation requirements ,at hand.` and withoutin anyl case requiringthe use of extraneeus.- fasteningsf` orthe luserr of tools.` These various methods .ofinstallation makeit possible to .saveatimeandlabQr inin stallation of.v the yclipsregardlessloflthe natureof theinstallaf. tion space or the shape orlocation of thesstrucf tureon which .tl'lerclaspisy mpllntedto suppcrtthe clip.

Itsl`1,c ulc l4 beinotedvthai'J Ethe Y.tongueV-likejaw` i 21 hasa curved kor Vhooks-lilfxe,free end .E21 to aid in. eifecting atight gripping apri holdinaactioneon the supporti and that this aswell ,as .the otherA constructions I- arrangements of.' the.. clasp-v make it-possibleto-t it ontosupports .ofMdifferI-- ent thicknesses and shapes with a reliable. gripe. ping A andilli-)id irig.4` action 'i al l.cases. In Esome installations-illo-olappnnood-@opiygbo prologo opio the support suiiciently-` to bring` the curved or` heok\ endoverthe edgeqoffthe 1support asthisp end inttingover saidedge-together-with the tight golem-ping Eaction afforded by the clasp: will suflice tovrsecurely- Yholdgit on.the ,support While we-have shown ,anddescribedia pecic. embodiment ofensifinvier1-tiori-weclonotI limit oui:- selves.K to thef @Kook details off oopsuruoi-opr; Set forth, and the invention.eine,races:sughichanges, modifications appl oapiralenis. ofc` tha-spannend their formation and arrangement as come within the purview of the appended claims.

We claim:

1. In a mounting means for a wire or conduit supporting clip having a member projecting therefrom to. afford al.z detachable connection thereof with the m0untingm eans, a U-shaped spring metal clasp the legs of which are adapted toglie upon opposite sides of a support on which the clasp is mounted, and a resilient tongue-like jaw.- carried by-andV being inwardly offset from one of said legs so asr to grip the support between it and theothertof lsaid legs, the leg carrying said javthaving".slottherein for reception of said member-onfthegclip to detachably support the clinonzsaid;clasp-and being outwardly offset between its en,ds. l

2: Ina mounting means for a Wire or conduit supperting clip having a headed member projecting therefrom to afford a detachable connection thereof, with the mounting means, a

spring metal; U;shapedc1a spthe legs of which are adapted tolle uponoppesite sides of asunportzon ,which tpeolospJ is mountedland` atongue lilgej ann-formed integral atene` end with ,one ofy saidllegs ininwardlyciset relation thereto so as tohgripfthesupport between it and the otherof. sacl1e 5 he leg: from *whichV said ljaw, is` struckJv having;, an outwardly, offset portion between its endsin whichportion is ,formed ,a T-shaped slot forreception-of the 4headed, memberon the clip` to detachably suppoltthe Clip onnsaidV clasp. with. thelheaded member abuttingvsaid J' aw. Y

3 In amounting-,means f0r a wire, or conduit` suppQrtingeclpghavingla headed. member-projectingltherefromhto, aiord a Y,detacl'lalole conn ect-ionV therepfwith the, mounting meansy a spring metal.

llgshapedvlclaslzp thevlegs, o f which are adapted tot liefupon oppositei sides oflapSllPpOiipOn WhiCh the. clasp ismounted, and atonglle-,like jaw carriedY bygone oi Saiolplogs,,andlbeingmfor the most ,part

irrwaijdly, offset vfrom andpsubstaptially parallel with, amajprpartlof said one leg,the.leg from which said jaw isstruckrhavingwa TV-shaped slot therein; for reception l ofy the. headed, .rrlernlrA on the.` clip to,,detaczhably support the clip onusaid clasp, said jaw being arranged to act as a stop:

and, gudefor thehoadodmember zwhen mounting theplipop said clasp-v 4k Inl .combination with@ L.oondilitor wire em:

bracinaclinhaying aiheaded projection. a clasp.,

orpsupstarniailyy an inverted Usshape adaptedcto embrace. Support with. :its opposed legs vfric..-

tionallyecontacting ,.oppositesides of. the. support,

means for detachably interlocking the claspvwith, tho headed p loi option r,.1o1udi.r,laYfi` slot .provided ip. .oneloa oi. theolasp. for reception, oithepeaded,

fastenipa and l-tlesiliopt` members .projecting c ip -v wardlytfromopposod. feoosof said lo in adire@- iion, top/oros. ,ihobislotportonpof said. Clasp V.for contamina the, Support to.; froti.opally` holdin@ clasp, thereon 5, In Combination, .with .a oopduit .orl wireem-A bracing clip having a headed proietiornzaplasp empresa a support-with its. l opposedv leas friction:

oliaoptaotipsfoppositopides or the support, .andk

moans for idetoshablyrintorlookipatheciasp with thaheadedppoipotiopinoludins.a.S-lotproridodin of substantially an inverted U-shape adapted to embrace a support with its opposed legs frictionally contacting opposite sides of the support, and means for detachably interlocking the clasp with the headed projection including a slot provided in one leg of the clasp for reception of the headed fastening and a. resilient jaw carried by the slotted leg and disposed between said legs to Contact the support and said headed projection, said slot being substantially T-shaped. said slotted leg having a portion offset toward the other leg and in which the head of said T-shaped slot is located.

ARCHIBALD ROBERTSON.

DALE W. MERRI'IT.

REFERENCES CITED The following references are of record in the file of this patent:

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